Optimal. Leaf size=58 \[ -\frac {a^4}{b^5 (a+b x)}-\frac {4 a^3 \log (a+b x)}{b^5}+\frac {3 a^2 x}{b^4}-\frac {a x^2}{b^3}+\frac {x^3}{3 b^2} \]
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Rubi [A] time = 0.03, antiderivative size = 58, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, integrand size = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {43} \begin {gather*} -\frac {a^4}{b^5 (a+b x)}+\frac {3 a^2 x}{b^4}-\frac {4 a^3 \log (a+b x)}{b^5}-\frac {a x^2}{b^3}+\frac {x^3}{3 b^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 43
Rubi steps
\begin {align*} \int \frac {x^4}{(a+b x)^2} \, dx &=\int \left (\frac {3 a^2}{b^4}-\frac {2 a x}{b^3}+\frac {x^2}{b^2}+\frac {a^4}{b^4 (a+b x)^2}-\frac {4 a^3}{b^4 (a+b x)}\right ) \, dx\\ &=\frac {3 a^2 x}{b^4}-\frac {a x^2}{b^3}+\frac {x^3}{3 b^2}-\frac {a^4}{b^5 (a+b x)}-\frac {4 a^3 \log (a+b x)}{b^5}\\ \end {align*}
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Mathematica [A] time = 0.02, size = 54, normalized size = 0.93 \begin {gather*} \frac {-\frac {3 a^4}{a+b x}-12 a^3 \log (a+b x)+9 a^2 b x-3 a b^2 x^2+b^3 x^3}{3 b^5} \end {gather*}
Antiderivative was successfully verified.
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IntegrateAlgebraic [F] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {x^4}{(a+b x)^2} \, dx \end {gather*}
Verification is not applicable to the result.
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fricas [A] time = 1.20, size = 73, normalized size = 1.26 \begin {gather*} \frac {b^{4} x^{4} - 2 \, a b^{3} x^{3} + 6 \, a^{2} b^{2} x^{2} + 9 \, a^{3} b x - 3 \, a^{4} - 12 \, {\left (a^{3} b x + a^{4}\right )} \log \left (b x + a\right )}{3 \, {\left (b^{6} x + a b^{5}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 1.07, size = 79, normalized size = 1.36 \begin {gather*} -\frac {{\left (b x + a\right )}^{3} {\left (\frac {6 \, a}{b x + a} - \frac {18 \, a^{2}}{{\left (b x + a\right )}^{2}} - 1\right )}}{3 \, b^{5}} + \frac {4 \, a^{3} \log \left (\frac {{\left | b x + a \right |}}{{\left (b x + a\right )}^{2} {\left | b \right |}}\right )}{b^{5}} - \frac {a^{4}}{{\left (b x + a\right )} b^{5}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 57, normalized size = 0.98 \begin {gather*} \frac {x^{3}}{3 b^{2}}-\frac {a \,x^{2}}{b^{3}}-\frac {a^{4}}{\left (b x +a \right ) b^{5}}-\frac {4 a^{3} \ln \left (b x +a \right )}{b^{5}}+\frac {3 a^{2} x}{b^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.37, size = 59, normalized size = 1.02 \begin {gather*} -\frac {a^{4}}{b^{6} x + a b^{5}} - \frac {4 \, a^{3} \log \left (b x + a\right )}{b^{5}} + \frac {b^{2} x^{3} - 3 \, a b x^{2} + 9 \, a^{2} x}{3 \, b^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.07, size = 62, normalized size = 1.07 \begin {gather*} \frac {x^3}{3\,b^2}-\frac {4\,a^3\,\ln \left (a+b\,x\right )}{b^5}-\frac {a\,x^2}{b^3}+\frac {3\,a^2\,x}{b^4}-\frac {a^4}{b\,\left (x\,b^5+a\,b^4\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.22, size = 54, normalized size = 0.93 \begin {gather*} - \frac {a^{4}}{a b^{5} + b^{6} x} - \frac {4 a^{3} \log {\left (a + b x \right )}}{b^{5}} + \frac {3 a^{2} x}{b^{4}} - \frac {a x^{2}}{b^{3}} + \frac {x^{3}}{3 b^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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